Soybean milk in the refrigerator is generally not recommended to drink overnight, the main component of soybean milk is protein, protein is perishable, placed for too long easily cause soybean milk deterioration, drinking may lead to physical discomfort. Usually the soya milk you drink at home is freshly squeezed soya milk, without the presence of preservatives, can not prevent the reproduction and survival of pathogenic bacteria, easy to be contaminated by Clostridium botulinum. If you drink it overnight after putting it in the refrigerator, it may cause food poisoning, lightly manifested as abdominal pain, diarrhea and other digestive system symptoms, and seriously cause systemic poisoning reactions, such as vomiting, diarrhea, severe abdominal pain, headache, difficulty swallowing, etc. In serious cases, urinary retention, and even coma and shock may occur. Freshly squeezed soy milk is rich in nutrients, but also easy to breed bacteria, it is recommended that soy milk now squeezed now drink, the day do not leave too long, try to drink within 2-4 hours, to avoid airborne microorganisms destroy the nutrients in soy milk. In addition, the temperature of the soy milk preservation should not be too high, especially the sweetened soy milk, sugar can provide a lot of energy to the reproduction of bacteria, not in time to drink easily cause deterioration, is not conducive to the health of the body.